FREE VIBRATION ANALYSIS OF STIFFENED CONICAL SHELL. Journal of Engineering, [S. l.], v. 8, n. 03, p. 263–275, 2003. DOI: 10.31026/j.eng.2002.03.01. Disponível em: https://joe.uobaghdad.edu.iq/index.php/main/article/view/3055.. Acesso em: 13 may. 2024.